Detroit Locker-Tractech Eaton Posi - GM 8.5 10-Bolt 30-Spline DET19559-010

Differential Carrier - Eaton Posi - 30 Spline - 2.73 Ratio and Up - Steel - 8.5 in / 8.6 in - GM 10-Bolt - Each Brand-DETROIT LOCKER-TRACTECH MPN 19559-010 . **NOTE: Truck Freight NO